AppTap, which powers personalized and contextual app recommendations, app search, and more has raised $4 million in funding led by Syncom Venture Partners, with New Atlantic Ventures participating.

AppTap is an app recommendations and advertising network for for mobile app developers. The startup’s app recommendation platform for publishers can be added to any web site and will analyze the content of any page, and deliver app recommendations to users based on what they are reading and searching for.

The company’s advertising network gives app developers access to “millions of app users” in AppTap’s network of premium web publisher and carrier partners, which includes Sprint. App developers promote their apps to this targeted audience of app consumers.

The new funding will be used to enhance AppTap’s app recommendations service, which serves more than 150 million app recommendations a month. AppTap will also use the funding to broaden its app advertising capabilities for developers and expand global distribution partnerships.